<template>
  <div id="slider" class="mui-slider">
    <div
      id="sliderSegmentedControl"
      class="mui-scroll-wrapper mui-slider-indicator mui-segmented-control mui-segmented-control-inverted"
    >
      <div class="mui-scroll">
        <a
          :class="['mui-control-item', index == 0?'mui-active':'']"
          v-for="(item,index) in cates"
          :key="item.id"
          @tap="getAllList(item.id)"
        >{{item.title}}</a>
      </div>
    </div>

    <ul class="phot-list">
      <router-link v-for="item in list" :key="item.id" :to="'/home/photoInfo/'+item.id" tag="li">
        <img v-lazy="item.img_url" class="tupian"/>
        <div class="info">
          <h1 class="info-title">{{item.title}}</h1>
          <div class="info-body">{{item.zhaiyao}}</div>
        </div>
      </router-link>
    </ul>
  </div>
</template>

<script>
import mui from "../../../lib/mui-master/dist/js/mui.js";

export default {
  data() {
    return {
      list: [
      ],
      cates:[]
    };
  },
  methods:{
    getAllCategory() {
      // 获取所有的图片分类
      this.$http.get("api/getimgcategory").then(result => {
        if (result.body.status === 0) {
          // 手动拼接出一个最完整的 分类列表
          result.body.message.unshift({ title: "全部", id: 0 });
          this.cates = result.body.message;
        }
      });
    },
    getAllList(id){
      this.$http.get("api/getimages/" + id).then(result=>{
        if(result.body.status == 0){
          this.list = result.body.message;
        }
      });
    }
  },
  mounted() {
    mui(".mui-scroll-wrapper").scroll({
      deceleration: 0.0005 //flick 减速系数，系数越大，滚动速度越慢，滚动距离越小，默认值0.0006
    });
  },
  created(){
    mui(".mui-scroll-wrapper").scroll({
      deceleration: 0.0005 //flick 减速系数，系数越大，滚动速度越慢，滚动距离越小，默认值0.0006
    });
    this.getAllCategory();
    this.getAllList(0);
  }
};
</script>

<style scoped>
img[lazy="loading"] {
  width: 40px;
  height: 300px;
  margin: auto;
}

.info-title{
  font-size: 14px;
}
.info-body{
  font-size: 13px;
}

li{
  background-color: #ccc;
  list-style: none;
  position: relative;
  margin-top: 10px;
  box-shadow: 0 0 9px #000;
}

.info{
  position: absolute;
  bottom: 0px;
  color: aliceblue;
  text-align: left;
  background-color: rgba(0, 0, 0, 0.4);
  max-height: 84px;
}

ul{
  padding: 0px 10px;
  margin-top: 0px;
}

.tupian{
  width: 100%;
  vertical-align: middle;
}

</style>